Christoph Massak

Hi, I'm doing a research on sketching and writing utensils for my design project. Since you all are using several tools to communicate your ideas, I would like to know more about it. So, if you could tell me a little bit about your favorite writing/sketching utensil and especially WHY it is you favorite, I would appreciate it a lot. You can answer here in the forum or if you want to at this survey: http://www.surveybui...source_type=web Thank you a lot for you help!